Ubuntu :: External Hard Drive Now Stuck In Read-only Mode?

Jan 22, 2011

so here's my issue and what I think is causing it right now. I have a 1TB external usb hard drive that has worked perfectly, but recently I set it up a mount point for it in fstab so that I could create a SMB share on the drive so I could stream videos and pictures to my TV through my Wii using WiiMC. This now works perfectly, but now the hard drive has been set into read-only mode. When I use sudo to try to chmod the drive or the folders on it, it does nothing. When I right-click on the drive and check the permissions tab, it says the owner is root and all the options are greyed out.

I've read through several posts on similar topics to this, but none of them have been very helpful as they suggest using command line tools that I don't know how to use, so I'm hoping someone here can give me concise, step by step instructions of what to type in, or what settings to change in fstab to solve my little problem so I can start copying stuff back onto my drive. I'm running Ubuntu 10.10 and the filesystem on the external drive is FAT32. Here's some more info you might need:

sudo fdisk -l:

Code:
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

[Code]...

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Ubuntu :: External Hard Disk /Hard Drive Mounts As Read Only (Suddenly)?

Jan 17, 2011

I recently bought 320 GB Trancend external hard disk and working fine days back.Earlier i could copy from and to the hard disk with out any issue. I dont know what happened after that now i am not able to write any files in to the external hard disk. This is not NTFS formatted device. here is some of the out put from terminal.

Code:
sundar@sundar-sundar:~$ fdisk -l
Disk /dev/sda: 120.0 GB, 120034123776 bytes

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Aug 21, 2010

I was in the process of backing up data from my hard drive to an external usb drive when the drive suddenly became read only. Does anyone know how I can make it read/write again? I am using Debian Lenny and the drive is ntfs formatted. I have another ntfs formatted usb drive that is not effected in this way.

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Ubuntu :: Xfce4. External USB Hard Drive Is Read Only Despite Efforts?

Jun 26, 2010

I am using Thunar and XFCE4. I started with the minimal install CD, so this is not exactly Xubuntu as I do not have Xubuntu-desktop package installed. I installed psydm to be able to easily edit and control mounting, fstab etc... Anyways, I can't figure out how to write to this disk. I have amended the Thunar icon to read "gksudo Thunar" as its command. It opens Thunar with whatever elevated rights that would come along with the command. I still can't write to the disk. If I change the permissions for the disk under the properties tab to be "read&write" for the user group, It asks me about something to be done retroactively to files. No matter whether I choose yes or no here, it still does not change the disk to a writable disk.

No love and no ideas. Can you help me write to this disk ? I run as a user called "user" so maybe I should not have made Thunar open as "gksudo" ?

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General :: External Hard Drive Mounted As Read-only

Mar 16, 2011

I administer a remote server via SSH that runs CentOS 5.5. I have been unsuccessful in all my attempts to write to two different external USB hard drives with a single ext3 partition when logged in as root.

When attempting to create a "test" directory I get one of two messages:

Quote:

Both drives *appear* to have filesystem issues. When I run an fsck on either drive, I get:

Quote:

Keep in mind this is a newly-formatted, empty drive.

Not putting stock in the odds that I've had two hard drives (different sizes and brands) with the exact same hardware problem, I'm going to assume this is a software issue, although maybe it isn't. Hence, my post in "Linux - General". I've heard talk elsewhere of controller (chipset) issues coming into play. Is this valid?

Okay, here's the information you'll need to make a diagnosis....

Here's the output of a "df -h" command:

Quote:

Here's the contents of my /etc/fstab:


Quote:

Here's the output of "cat /etc/mtab":

Quote:

Here's the output of a mount command:

Quote:

Here's the output of fdisk on the device in question:

Quote:

The number of cylinders for this disk is set to 48641.

There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with:

1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help):

I've got someone with access to the box if necessary. But it might take days to implement solutions since this isn't his full-time job. Remote solutions are, therefore, preferable.

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Oct 7, 2010

I try

mount -t ntfs -o rw /dev/sdb1 /mnt/exthdd

it doesn't give me any response so I presume it succeeded but when I try to touch it, it tells me it's a read-only file system

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I have a problem in auto mounting external usb hard drive in write mode.

I'm using Debian Etch.

# /etc/fstab: static file system information.

Writing to etrenal USB hard drive doesn't work:

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Jan 14, 2009

I have 2 ubuntu's: 1 on my ineternal hard drive, 1 on my external

When I startup without my ext drive =>GRUB error 21.

And when I plug it in I can choose: the standard ubuntu kernel is the one on my external, and the original one is listed under other...

I'd like to be able to startup without external hard drive and make the ubuntu on my internal drve the standard.

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Dec 16, 2010

i borrowed an external hard drive from my friend to back up a load of stuff on my windows partition before reinstalling it. I am doing this through ubuntu. I am trying to zip up folders like My Documents etc and chuck them on the external hard drive but it always comes up with errors to do with read/write permissions. In the permissions tab on the folder properties of the ext hard drive it says I am owner but i have no file access (only folder access is create and delete files). When i try to give myself read/write permission it just goes straight back to nothing when i look at it again.

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Apr 7, 2010

I realized after spending some time performance tuning my mini Linux server that the hard drive is stuck in IDE mode, and I can't get the controller to be discovered in AHCI mode.EDIT: I should add that I'm running Vector Linux 6.0 Lite, which is based on Slackware 13.0. The Kernel version is 2.6.27.12.

The mobo in question is actually a small mini-ITX board from Foxconn. Here is a links to the specs:url.I use it for a media server, and so far the drive I'm using (Hitachi HDE721010SLA330) is working fine in IDE mode (apparently).

I have a strong suspicion that the crappy Foxconn BIOS supplied with the board is not initializing the Intel 945GC controller in AHCI mode. There is a BIOS entry for setting the controller to "Advanced", but I don't think it's doing the job.

Here is an "lspci -vvnn" of my system:

Code:
00:00.0 Host bridge [0600]: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub [8086:2770] (rev 02)
Subsystem: Foxconn International, Inc. Unknown device [105b:0d4d]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
code....

Is there anything I can do to get the drive/controller in ahci mode, or is the BIOS screwing me?

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I would like to install Linux Ubuntu 11.04 on an external hard drive - its partitioned and ready for Linux.I've downloaded and burnt the .iso file to a DVD so its all good so far...First of all... is this possible without messing up my macbook? I don't particularly want to break into my macbook to disconnect the hard drive (I read on a tutorial for a previous version of Ubuntu that I'd have to do that... - does it still apply to 11.04?) - as it voids the warranty (I checked ).The reason I ask this is because I had a friend who partitioned their internal hard drive and installed Ubuntu on it. But after installation was complete they couldn't boot up Windows 7 or Ubuntu... and it resulted in them having to clean install Windows 7... - I don't want to end up in that situation

Second... If it is possible to install it without messing up my macbook... - Do I just follow the install instructions but just make sure that where possible I make sure that everything is installed on my external hard drive?...I really need someone to put my mind at rest that everything will run smoothly and that I'll be able to run Mac OS X as usual but also that I'll be able to boot from my external hard drive to run Ubuntu.

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Feb 9, 2010

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Aug 30, 2010

Short version: How do I reformat an external hard-drive (read-only, NFTS) so that I can rw to it.

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Ubuntu ext3 SATA -> connector -> Mac OS X

or

Ubuntu ext3 SATA -> connector -> Ubuntu ext3 laptop -> external NFTS HD -> Mac OS X

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Jan 19, 2010

I set up a server using ubuntu 9.10, with two hard drives in a hardware Raid 1 setup and with two more drives for recurring backups. The problem is that the two drives for backup are set to read only and won't allow me to change the permissions even when logged in as root. I have tried putting "rw" into the "fstab" file with no luck, I have also tried running "gksudo nautilus" and "fsck -r /dev/sdc" but still have the same message that I don't have the necessary permissions to complete the task.

**I just tried erasing the data on the disk and creating a new partition, the disk utility allowed me to erase the data and create FAT32 partitions with the same permission problems but would not allow an EXT partition or NTFS partition (it would give and error message stating:"Error creating file system: helper exited with exit code 1: helper failed with:mke2fs 1.41.9 (22-Aug-2009)")**

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I was busy making backups to my external hard drive just now, but Ubuntu crashed 10 mins into the backups. After rebooting the affected folders are now Read only, and I cannot add or remove anything. This is extremely annoying, I already threw away two USB flash disks because the same thing happened to me in the past. I don't want to throw away the external because it's far more expensive and packed with backups.

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*-disk
description: SCSI Disk
product: ST173404 CLAR72
vendor: SEAGATE
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/sdb
version: 3A98
serial: 3CE0SRYL00007142FHAW
capacity: 67GiB (72GB)
capabilities: 10000rpm
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Jan 4, 2010

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Jan 16, 2010

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Here is what I get with fdisk -l:

/dev/sda1 * 1 14219 114214086 83 Linux
/dev/sda2 14220 14593 3004155 5 Extended
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